It is essential to note that if you wear a chastity tube that is too tight, it can act as an irremovable cock ring. The resulting strangled priapism can end in penectomy if not treated immediately. If you have an erection that isn't going away and your chastity tube is stuck, it is very important that you seek immediate medical attention. The longer you wait to go to the hospital if this happens, the higher the risk is.

Note: Don't go to the hospital just because you can't get the chastity tube off — it's the erection that's the problem.